wilhelm

That would be Prince Vilhelm, Duke of Södermanland of course. Source: en.wikipedia.org/wiki/Prince_Vilhelm,_Duke_of_S%c3%b6derm...

The three men in comfortable armchairs are prince Wilhelm with a white hat, his brother the crown prince Gustav, who was king of Sweden (Gustav VI Adolf) from 1950 to his death in 1973 and their father, who was king (Gustav V) at the time for the photo until he died in 1950. All from the family Bernadotte, one of Napleon's marshals that was invited to become king in Sweden in 1818. The crown prince had died, and measures were taken to save the monarchy.

Kaiser who?

Days of power---great cape!

[http://flickr.com/photos/patriotic-ww1/7136939367]

Looks like another of Crown Prince Wilhelm. en.wikipedia.org/wiki/William,_German_Crown_Prince "His Imperial and Royal Highness Friedrich Wilhelm Victor August Ernst Hohenzollern, the Crown Prince of Prussia was best known to most people outside Germany as Little Willie, a slender youth with a long nose and no chin. He was seen in most of his photographs dressed as a Death's Head Hussar, and caricaturists generally drew him in that uniform, which suited his long and lanky fignre. At eighteen he "came of age" and assumed the Royal and Imperial dignities and precedence, and in the same year (1900) was made a Lieutenant in the 1st Foot Guards, served three years in that rank, became a Cavalry Captain for four years, and a Major for six. His name appeared on the lists of eleven or twelve different German regiments, and he also belonged to the llth Spanish Dragoons. Up to the outbreak of the Great War he could be described as a keen regimental soldier up to a certain point. He was advanced to the command of the Death's Head Hussars at Danzig. Without any real knowledge of war he was quickly jumped up in rank from commander of a cavalry regiment to lieutenantgeneral, and given command of the largest group of army-corps." www.globalsecurity.org/military/world/europe/totenkopf.htm